I've been thinking more and more about Denon as a potential future receiver. I like the XT32 but I want more control over it. But if the software is crap, I don't need the headaches. More and more, I need stuff that works and I don't want to be part of vendor experiments.
Could PM michael_d since he's had his Denon for awhile now and see if he's used the app to get his impression, assuming he doesn't see this thread and reply first.
Perhaps something with Dirac onboard and ridiculously more expensive like a NAD or Anthem unit would be in your ballpark. Most people i know would never spend $3000 or more on a pre-pro.